Designs for dlagnosablllty and reliability in VLSI systems

  • Authors:
  • Stephen Y. H. Su;Hede Ma

  • Affiliations:
  • Dept. of Computer Science, Research Group on Design Automation and Fault - tolerant Computing, Thomas J. Watson School of Engineering, Applied Science and Technology, State University of New York ...;Dept. of Electrical Engineering, Research Group on Design Automation and Fault - tolerant Computing, Thomas J. Watson School of Engineering, Applied Science and Technology, State University of New ...

  • Venue:
  • ITC'88 Proceedings of the 1988 international conference on Test: new frontiers in testing
  • Year:
  • 1988

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Abstract

New concepts of Designs for Diagnosability and reliability are defined and developed in this paper. A diagnosable design of VLSI system is presented, in which fault isolation is realized by minimal additional hardware instead of traditional software diagnostic procedures such that the computation space and time for fault isolation are saved. Our fault-tolerant design uses on-line fault detection and isolation techniques, yields higher reliability with minimized hardware overhead of no more than 125% as opposed to over 200% in classical redundancy fault-tolerant designs. Furthermore, using our scheme, the ability to isolate intermittent faults is a significant improvement over the existing fault isolation methods because faults could be isolated right after they are detected.